I think it is LED technology. LEDs have a very small bandwidth. Even white leds are just three very small small bandwidth emissions.
The very tight intensity in such a small bandwidth is hard on the eyes. Even when compared with the same power of older lighting technology, which has a comparatively massive bandwidth.
LEDs could be designed to compensate for this better. They could add more different colours of LEDs to the matrix that makes up white LEDs.
This was caused by lowest bidder decision making. Along with a tolerance for critical systems designed, developed and manufactured outside of North America and Western Europe. If a country doesn’t have a history of liberal democracy, they can never be fully trusted.